Home / 20,501,432.19-28,292,566.89-11,334,665.43

Finding the Fourth Proportional to 20,501,432.19, 28,292,566.89 and 11,334,665.43

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Solution

The fourth proportional to 20,501,432.19, 28,292,566.89 and 11,334,665.43 is: 15,642,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,432.19 : 28,292,566.89 = 11,334,665.43 : x
  2. Step 2: Convert to fraction form
    20,501,432.19/28,292,566.89 = 11,334,665.43/x
  3. Step 3: Cross multiply
    20,501,432.19x = 28,292,566.89 × 11,334,665.43
  4. Step 4: Simplify right side
    20,501,432.19x = 320,686,779,854,045.62
  5. Step 5: Solve for x
    x = 320,686,779,854,045.62/20,501,432.19
  6. Step 6: Final answer
    x = 15,642,164.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.